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With incisive analytical skill and a business focus, Dan helps clients understand how intellectual property (IP) protections can help them achieve their business goals.

Dan focuses his practice on patents, trademarks and copyrights, as well as advertising, marketing and e-commerce. He combines an electrical engineering and mathematics background, legal skills and a competitive spirit with strong business experience developed during multiple secondments to major multinational companies.

Dan has repeatedly been brought on board for months at a time by clients to serve as temporary full-time in-house IP counsel. His in-house secondment experience includes overseeing a multibillion dollar international IP portfolio for a major brewing company and managing extensive internal IP teams. Dan’s time in-house has given him an up-close view of the internal pressures faced by clients, and he personally understands the balance in-house counsel must strike by meeting both legal needs and business goals. Sitting on “the other side of the table” from outside counsel, Dan gained invaluable insight and perspective for how to make clients’ lives easier.

As a patent attorney registered with the U.S. Patent and Trademark Office, Dan drafts and prosecutes electrical, mechanical, internet-based and business method patent applications for large corporations and research laboratories. He has substantial experience in post-issuance proceedings, including as lead counsel in the first two post-grant reviews ever to be instituted, and provides IP litigation support in patent, trademark, trade dress, trade secret and unfair competition lawsuits. Dan also prosecutes foreign and domestic trademark applications and enforces trademark rights for multinational corporations, including proceedings against domain-name cybersquatters.

Experienced with the National Advertising Division of the Better Business Bureau, Dan helps clients with mobile and digital applications used in social media for marketing or other purposes. He also holds a professional certificate in Blockchain Fundamentals.

Dan serves as the co-chair of the firm’s IP practice group.




  • Managing Intellectual Property IP STARS, Patent star, 2020-2022
  • Missouri & Kansas Super Lawyers, Rising Star, 2017


  • Blockchain Fundamentals Professional Certificate, University of California, Berkeley
  • J.D., University of Illinois College of Law
    • with high honors
  • University of Oxford
    • International and Comparative Intellectual Property Law Summer Program
  • B.E., Vanderbilt University
    • Electrical Engineering and Mathematics
    • with high honors
    • Alpha Epsilon Pi, President, 2003-2004


  • Missouri
  • U.S. Patent and Trademark Office

Professional Memberships and Certifications

  • The Bar Association of Metropolitan St. Louis
  • The Missouri Bar
  • Patent Trial and Appeal Board Bar Association, Young Lawyers Committee
Featured Experience

Leading the Way in Post-Grant Review Proceedings

Dan was lead counsel on the first post-grant review proceedings ever instituted under provisions established by Congress within the U.S. Patent Office to judge the validity of patents. His client was sued for infringement of two issued patents. At the Patent Trial and Appeal Board, Dan argued successfully that the patents were invalid and won the case for his client.

Additional Experience
  • Advised numerous startup companies from ideation through entity formation, and from initial IP audits through patent and trademark filings.
  • Prosecuted inter partes re-examination proceeding on behalf of multinational company, resulting in rejection of all patent claims asserted against client and dismissal of litigation.
  • Represented telecommunications client before National Advertising Division and prevailed in challenge of rival telecommunications company's advertisement.
  • Handled more than a dozen post-issuance proceedings before Patent Trial and Appeal Board.
  • Represented leading provider of recreational gear in a patent infringement lawsuit alleging infringement of two European patents and two European design patents in Germany. Filed invalidation proceedings with the European Patent Office, leading to all litigation and challenges being withdrawn.
  • Seconded three times to major brewing company to serve as in-house IP counsel for North America, overseeing a multibillion dollar IP portfolio.
  • Seconded to multinational consumer products conglomerate to serve as chief patent counsel.
  • Regularly serve as primary outside counsel to recreational equipment company.
Outside the Office

Dan and his wife are self-professed foodies who take their avocation very seriously.

They enjoy cooking, especially classical French and Asian cuisines, and they travel the globe to visit world-renowned restaurants.

With his engineering background, Dan loves to tinker with mechanical things, from watches to cars. His reading also reflects his scientific bent, encompassing everything from particle physics and quantum mechanics to biographies of 20th-century scientists.

Community Leadership
  • Volunteer Lawyers and Accountants for the Arts, Board of Directors